‘Ethernet doesn’t have a valid IP configuration‘ is occurred when the Network Interface Card (NIC) attached to the Modem or Router through an Ethernet cable could not find a working IP (Internet Protocol) address.
This is required for the system to the internet with your router and to function over the Internet. There’re various reasons why you come across this problem in the first place.
This could be a damaged router, an incorrect IP address assigned to the system, a faulty NIC, and others.
If you are coming across the error ‘Ethernet doesn’t have a valid IP configuration’ after running the Windows troubleshooter, do not worry.
In this article, we are going to mention various solutions that you can use to fix this problem.
So, let’s get started with the best solutions to fix the ‘Ethernet doesn’t have a valid IP configuration‘ problem.
Different Solutions to Fix the ‘Ethernet Doesn’t Have a Valid IP Configuration’ Error
1. Restart the system
Fast Startup is a significant feature, which is specially designed for loading settings to reduce starting time and boot from the system’s cache or memory.
Most users claimed that the problem ‘Ethernet doesn’t have a valid IP configuration’ could be resolved when your system restarts, and you disable this fast startup feature.
Undoubtedly, disabling this feature is an effective solution to fix the issue. However, it could result in the complete loss of this feature ‘Fast Startup’ altogether. For disabling it, follow the instructions:
- Right-tap on the tab ‘Start Menu‘ for opening the WinX window
- Next, select ‘Power Options‘ from this WinX menu.
- Select ‘Choose what the power buttons do / Choose what the power button doe.’
- Now, tap on the ‘Change settings that are currently unavailable‘ option.
- Uncheck the box against ‘Turn on Fast Startup‘ for disabling the ‘Fast Startup‘ feature
- Choose ‘Save changes‘
- Now, close all the system settings and start your system again.
2. Reinstall IP/TCP to Fix ‘Ethernet Doesn’t Have a Valid IP Configuration’
Faulty IP/TCP protocol could be likely the reason behind this frustrating problem. For fixing this issue, you can reinstall IP/TCP in the following manner.
- From your keyboard, you need to press tabs ‘Windows‘ + ‘X‘ together. After that, choose ‘Network Connections‘
- Now, right-tap on the network adapter. Then, choose ‘Properties.’
- Tap on the tab ‘Install.’
- Next, choose ‘Protocol‘ and then select ‘Add.’
- Choose the option ‘Reliable Multicast Protocol‘ and press OK for installing the protocol.
- Lastly, you need to reconnect the Wi-Fi or Ethernet to examine if the issue ‘Ethernet doesn’t have a valid IP configuration’ has been resolved.
3. Reboot Modem/Router
It is recommended to power off your modem and router or just power off the router than both. After that, wait for about five minutes and turn on your router back.
Now, check your system if it is still showing up the ‘Ethernet doesn’t have a valid IP configuration’ error. After waiting for a while, check if it works now and features the right configuration.
If the problem still persists, you can try connecting the system to another router. If you come across the same problem with this other router too, then you need to replace your network card.
And if the other router works fine, then you need to replace your router. Before replacing it, it is important to perform the factory restoration. For this, check the guide given by the manufacturer to follow the factory reset manual.
4. Reset Network Settings
The other thing that users could try is to reset the internet settings. The error ‘Ethernet doesn’t have a valid IP configuration’ could be due to several causes, where your network settings have an issue with the current network or become outdated.
In order to reinitialize this connection procedure, you can reset the socket and flush the DNS server. To solve this problem, you can follow the steps given below.
- Press tabs ‘Windows+S‘ simultaneously and then put ‘command prompt‘ in the box. Then, hit Enter.
- Now, execute the commands one at a time in the command prompt as:
nbtsat – R
nbtstat – RR
netsh int ip reset c:/resetlog.txt
netsh winsock reset
- Once you reset the settings, you need to start the computer. After that, press tabs ‘Windows+R‘ and put in ‘control panel‘ and hit Enter.
- Next, choose ‘Network and Sharing Center‘ and select ‘Change adapter settings‘ available at the screen’s left side.
- Right-tap on the Ethernet hardware for selecting the option ‘Disable.’ Once done, right-tap again and choose ‘Enable.’
- Lastly, start your PC again and check if the issue still persists.
Please note that you could switch the connected TP to your router and also, PA511 to the system.
5. Check the Connected Wires/Cables
After performing the above steps, you need to ensure that all connected cables are working properly. Not just the cables connected to your computer, but also the ones present in the switch/router locations.
When you plug the Ethernet wire, you always hear the ‘click‘ noise. Once done, you will see an instant blinking on your device, which signifies that the wire is connected correctly. This even applies to the primary cable that connects your house to your internet, which the Internet Service Provider usually installs.
Another thing that you can check is if the other devices do not connect to your internet. If that’s the case, then nothing is wrong with the system.
6. Re-install the Network Adapter Drivers
To look for the right network card driver for your system, it is best to follow the manufacturer’s website. If you do not have the computer skills or patience to update the drivers manually, then do so automatically using Driver Easy.
This tool will recognize the system automatically and look for the right drivers for your system. In this way, you would not make a mistake when installing drivers or put your system at risk by downloading the wrong drivers.
For updating the drivers automatically, you can use Driver Easy‘s free version or Pro version. Using the Pro version, you can install drivers in just two clicks. The best part is that the tool features a 30-day money-back challenge if it does not work for you. To do so, follow the steps as:
- Download Driver Easy and install the same.
- Launch the program and tap on the tab ‘Scan Now.’ The application will scan the computer and look for problem drivers.
- Tap on ‘Update‘ present beside the fault card device for downloading automatically and installing the right driver’s version. It is possible to do using the free version of Driver Easy. Or else, tap on ‘Update All‘ for automatically downloading the right version of all the present drivers, which are outdated or missing on the system. To carry out this process, you require its Pro version.
Now, see if the ‘Ethernet doesn’t have a valid IP configuration’ issue has been taken care of!
7. Modify Network Adapter Settings
If the network settings are creating this annoying problem, you would not be able to employ your network connection. For fixing it, follow the instructions as:
- Press tabs ‘Windows+X‘ simultaneously and then, select ‘Network Connections.’
- Next, right-tap on the network adapter. Then, choose ‘Properties.’
- Select ‘Internet Protocol Version 4 (TCP/IPv4).’ Then, select ‘Properties‘.
- Tap on ‘Obtain an IP address automatically‘ and on ‘Obtain DNS server address automatically.’
- If the issue ‘Ethernet doesn’t have a valid IP configuration‘ remains, choose ‘Use the following IP address‘ and ‘Use the following DNS server addresses.’ After that, fill the following address:
IP address: 192.168.1.14
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.1
DNS server address: 220.127.116.11
Alternate DNS server: 18.104.22.168
Note: write down your original addresses for using them later on someday.
- Lastly, press OK to save the changes.
8. Run Command Prompt
It could be effective to refresh the network settings to fix the problem ‘Ethernet doesn’t have a valid IP configuration.’ For doing so:
- Press tabs ‘Windows+X‘ simultaneously and then choose ‘Command Prompt (Admin).’
- When you will be prompted for the administrator’s permission, tap on ‘Yes‘ for moving further.
- In the prompt window, you need to put in the command as:
netsh int ip reset c:/resetlog.txt
netsh winsock reset
Note: Do not forget to hit Enter after entering each command.
Now, start your system to make the changes.
- Press tabs ‘Windows+X‘ simultaneously and then, choose ‘Network connections.’
- Next, right-tap on the network adapter and choose ‘Disable.’ Here, provide the administrator permission for moving further if prompted.
- Again, right-tap on the network adapter and choose ‘Enable.’
Now, try the network connection for checking if the problem ‘Ethernet doesn’t have a valid IP configuration’ has been fixed.
9. Enable DHCP
So, DHCP detects automatically and even assigns the configuration settings of the network on the system. Thus, if this is disabled, somehow, your network configurations won’t be applied. This could result in the ‘Ethernet doesn’t have a valid IP configuration’ error.
To enable the DHCP, you have to go through the following instructions.
- Press tabs ‘Windows+R‘ simultaneously for opening the Run dialog box.
- Now, put in “services.msc.” Then, hit Enter.
- Double-tab on ‘DHCP Client‘ in the next Services Window
- Next, choose the ‘Startup‘ type and choose ‘Automatic‘ from there.
- Tap on ‘Start‘ for triggering the service.
- Navigate back for right-tapping on the option ‘DHCP client.’
- Choose the option ‘Restart-Service‘ and choose ‘Yes‘ to confirm the action.
10. Disable Power Management Features
Sometimes, some power-saving customizations disable several functions of the system for conserving energy. If this feature is enabled for your network adapter, it could restrict it to function properly.
To fix this problem:
- Right-tap on the icon ‘Network‘ and choose ‘Open Network and Internet Settings.’
- Select ‘Network and Sharing Center‘ and then follow with ‘Change Adapter Settings.’
- Right-tap on the internet connection and choose ‘Disable.’ Now, right-tap on it again and choose ‘Properties.’
- Tap on ‘Configure‘ and then on ‘Power Management.’
- Now, uncheck the box against ‘Allow the computer to turn off this device to save power.’
- Press OK for applying the changes and right-tap on your internet connection once again to select ‘Enable.’
Now, check if the problem ‘Ethernet doesn’t have a valid IP configuration’ has been resolved or not.
11. Disable Antivirus
Sometimes, antivirus software installed on the system could cause issues like ‘Ethernet doesn’t have a valid IP configuration.’ You can disable it temporarily and check if the error still shows up.
If the problem is not there, then your antivirus is the one that is blocking your system from making a connection with your internet.
- To fix this, right-tap on ‘Antivirus.’
- Many antivirus software comes with a ‘Disable‘ option.
- If this option is not there, search the internet for the steps to disable the antivirus.
So, these are different ways to fix the ‘Ethernet doesn’t have a valid IP configuration‘ error effectively. Try all of these solutions by working your way down until you come across the one that works effectively for you. If you could not fix the problem yourself, contact your ISP for assistance.